Ors of one-third to james a



3 Sheets-Sheet 1.

(No Model.)

W. 0. & J. A. AYOOOK. I BLIND STILE BORING AND MORTISING MACHINE. No. 447 270.

Patented Feb. 24,1891.

WITNESSES I IN VENTOR 'ld ATTORNEYS In: nunms PETERS- co:, Pnoroumm, wAsmxm-ou, av c.

(No Model.) 3 Sheets-Sheet 2.

- W.'G. & .J. A; AYOOGK.-

BLIND STILE BORING AND MORTI SING MACHINE.

Patented Feb.- 24, 1891'.

' WITNESSES A TTOHNEYS 3 SheetS-Sheet 3 (No Model.)

W. a. & JQA AYGOOK. BLIND STILE BORING- AN'D MORTISING MACHINE. No. 447,270.

Patented Feb. 24, 1891.

A TTOHNEYS 0., Puwmuruu, WASHINGTON o c NITED STA PATENT OFFICE WVILLIAM O. AYOOCK AND J OHN A. AYCOCK, OF GRIFFIN, GEORGIA, ASSIGN- ORS OF ONE-THIRD TO JAMES A. BROOKS, OF SAME PLACE.

BLIND-STILE BORING AND MORTISING MACHINE.

SPECIFICATION forming part of Letters Patent No. 447,270, dated February 24, 1891.

Application filed April 29, 1890. Serial No. 849,882. (No model.)

United States Letters Patent No. et23,110,

granted to us March 11, I890.

The object of the present invention is to provide a new and improved blind-stile-bor-' ing machine combined with a mortising-machine in such a manner as to rapidly and automatically bore the apertures and make the mortises at the same time.

The invention consists of certain parts and details and combinations of the same, as will be described hereinafter, and then pointed out in the claims.

' Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

. Figure 1 is a side elevation of the improve ment with partsin section. Fig. 2 is a transverse section of the same on the line a: w of Fig. 1, looking in the direction of the arrow 00, and Fig. 3 is a plan view of the same.

The combined blind-stile boring and mortising machine A is provided with a suitablyconstructed frame B, in which is mounted in suitable bearings the transversely-extending main driving-shaft C, carrying a pulley connected with suitable machinery for imparting a rotary motion to the said shaft 0. On the inner end of the shaft 0 is secured a bevel gear-wheel O, meshing into a bevel gearwheel D fastened on the longitudinally-extending shaftD, also mounted to turn in suitable bearingson the main frame B.

Near the inner end of the shaft D is secured a cam-wheel E, the periphery of which acts on the under sideof the projection F, formed on a frame F, in which are mounted to turn one or more shafts G, carrying the bits H, extending upward and passing through hollow gages or mortising-tools I, secured on the frame J, arranged transversely and fitted to slide in suitable bearings in the main frame B. hen not moving, the lower ends of the said frame rest on the lugs B ,projecting from the main frame. In this frame J is fitted to slide the frame F, carrying the shafts G, which latter are provided with pulleys G, over which pass belts connected with suitable machinery for imparting a rotary motion to the said shafts G in order to turn the bits H. The frame F receives its sliding motion from the cam E, previously mentioned, and the frame J is intermittently actuated from the main,

shaft D by being provided on one side with a bar J, fitted to slide in the said frame J and pivotally connected at K with a pitman K, pivoted on a crank-disk L, held on the inner end of the main driving-shaft D next the cam-wheel E.

The bits H and the mortising-tools I are adapted to engage the under sides of the stiles N, held on top of the bed-plate B of the main frame B. Each of the stiles N is held in place on the bed-plate by the brackets O, fitted onto the top of the stile in such a manner that the latter is free to slide longitudinally, the sides of the stile resting on brackets P, each held transversely adjustable on the bed-plate B For this purpose each bracket P is provided with a base P, fitted to slide transversely in a recess 13*, formed in the top of the bed-plate B In a lug B on the bed-plate is fitted to turn a screw P screwing into a lug P formed near the outer end of the base P. By turning the screw P the bracket I is quickly laterally adj ustei, so as to bring the stile N in proper position relatively to the bits H and tools I. The brackets P support adjustabl-y the brackets 0, adapted to engage the top of the stile. Against the outside of each stile N press the springs Q, so as to hold the stiles against the brackets P, at the same time permitting the stiles to slide longitudinally.

The stiles abut at their ends against the foot R secured on a stile-carrier R, fitted to slide on top of the bed-plate l3 and provided with sets of teeth S and S, adapted to be engaged by a pawl T, pivotally connected with a bell-crank lever T, fulcrumed on the main frame B and pivotally connected by the pitman T with a crank-arm T fastened on the outer end of the longitudinally-extending shaft 1). The cranlearm T is arranged relatively to the cam-wheel E in such a manner that when the said cam-wheel moves the frame F with the bits ll upward to bore the stile N then the pawl T is on its returnstroke, so that the stile-carrier It remains stationary. When the frame F slides downward and its bits H are out of contact with the stiles, the pawl T, by engaging one of the teeth S, moves the stile-carrier R, so as to shift the stiles to present a new place over the bits for the next aperture to be bored.

0n the under side of the bed-plate B is f ulcrumed a gravity-pawl U, having a projection U, adapted to be engaged by a lug R, secured on the under side of the stilecarrier R. The lower end of the gravitypawl U rests against the head V of a bolt V, extending longitudinally and fitted to slide in suitable bearings in the frame J. A spring V 2 serves to hold the bolt in an outermost position, so as to hold the gravity-pawl U in the position shown in Fig. 1-that is, moving the lug U into the path of the lug R of the stile-carrier R, so that when the said stileearrier is moved outward and the lug R strikes against the lug or projection U the lower end of the pawl presses against the head V and forces the bolt V through the frame J and into a slot J formed vertically in the arm J, previously mentioned. A block J is held in the slot J of the said arm J by means of a suitable bolt J Now when the bolt V has been pressed outward into the slot J of the arm J and the latter is moved upward, then the block J 2 presses against the said sliding bolt and lifts the frame J upward, so as to force the mortising-tools I into the stiles N. At the same time that the frame J slides upward the frame F is moved in the same direction, as the cam-wheel E and the crank-arm L stand in line with each other, as is plainly shown in Fig. 2.

\Vhen the gravity-pawlUis in the position shown in Fig. 1, the sliding bolt V is withdrawn from the slot J and the arm J is moved up and down by the pitman K and the crankarm L without lifting the frame J, it being understood that the said frame J only moves upward when the gravity-pawl U is pressed by the lug R of the stile-carrier R. 011 top of the latter is arranged a lug R adapted to engage a frame V, pivoted on a shaft \V, held on the brackets P, as is plainly shown in the drawings. 011 the frame V is hunga wedge the free pointed end of which extends over one of the teeth S, so as to prevent the pawl T from engaging more than one tooth S at a time when the mortising is taking place, it being understood that the sets of teeth S are farther apart, according to the distances between the apertures to be bored, while the sets of teeth S are short and are acted on by the pawl T at the time the mortising takes place.

The operation is as follows: If the machine is in the position shown in Fig. 1 and the main driving-shaft C is rotated, the camwheel moves the frame F upward, so as to cause the drills II to bore apertures into the under sides of the stiles N. As the sliding bolt V is withdrawn from the slot J in the arm J, the pitman K, the said arm J, and the crank-arm L run empty and the frame remains stationary in its lowermost position. At every turn of the main shaft D the frame F makes a full up-and-down stroke, and at its downstrolge the pawl T moves'the slide R forward the distance of one of the teeth S, so that at the next upward movement of the frame T new sets of apertures are bored by the bits II in the unde'r side of the stile. hen the lug R on top of the stile-carrier R comes in contact with the swinging frame V, the wedge-shaped arm V is pushed forward toward the pawl T, so that the latter on its return-stroke passes up the said arm V and engages at its forward stroke the first of the set of teeth S, which is now in that position. At the same time the lug R has acted on the projection U of the gravity-pawl U, so that the latter swings and pushes the sliding bolt V into the slot J of the arm J. At the next upward movement of the frame F the frame J is carried along by the block J engaging the bolt V in the said sliding frame J, as previously described, and the upper cutting-edge of the mortising-tools I cut around the aperture bored by the bits II. hen the frames J and Fare on their downward stroke and the bits II and mortising-tools I have receded from the stiles N, then the pawl 'l pushes the stile-carrier R forward the distanee equal to the space between two teeth of the sets of teeth S, so that on the next upward sliding movement of the frames J and F the bits II and the mortising-tools I again out the stiles, about one-half of the mortising-tools I extending into the previously-made apertures, so as to clean the same. This operation is repeated until the sets of teeth S have all been acted on by the pawl T, the lug R has passed the frame XV, and the lug R has passed the projection U. The frame \V then swings back to its former position, so that the pawl T again engages one of the teeth of the sets of teeth S, and the spring V forces the sliding bolt V outward out of engagement with the slot J of the arm J, so that the latter again runs empty. The gravity-pawl U then again stands in the position shown in Fig. 1, to be acted on by the IIO next followin lu R in the manner reviously described. It will thus be seen that the apertures for the trunnions of the slats are bored into the stiles at regular intervals, and the mortises for the cross-pieces are also cut into the stiles wherever desired, it being understood that as many sets of teeth S and S are arranged on the stile-carrier R ascorrespond with the sets of apertures and mor tises to be formed in the stiles.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent 1. The combination, with a reciprocating non-rotary hollow mortising-tool, of a rotary boring-bit passing therethrough and disconnected therefrom, and means for reciprocatin g the boring-bitindependently of said mor tising-tool, substantially as described.

2. The combination, with a hollow intermittent l y-reciprocatin g non-rotary mortisingtool, of a separate disconnected and independent regularly reciprocating rotary boring-bit passing through said mortising-tool, substantially as described.

The combination, with a stile-carrier having a variable feedor movement at stated intervals, of an intern]ittently-reciprocatin g hollow inortising-tool operating in connection therewith, and a separate and independent regularly-reciprocating boring-bit passing through the said hollow tool, substantially as described.

4. In a blind-stile boringand mortising machine, the combination, with a stile-carrierfitted to slide horizontally, of a vertically-reciprocating tool-frame carrying the bits, and a mortising tool-frame carrying hollow mortising-tools through which pass the said bits and movably independent of the bit-carrying frame, substantially as shown and described.

5. In a blind-stile boring and mortisin g machine, the combination, with a stile-carrier fitted to slide horizontally, of a vertically-reciprocating tool-frame carrying the bits, a separate and independent mortising-tool frame carrying holl ow mortising-tools through which pass the said bits, and means, substantially as described,forimparting motion'to the said frames and the carrier, as set forth.

6. The combination, with the longitudinally-extending stile-carrier provided with sets of teeth of different lengths, a lug on its under side just in advance of each set of smaller teeth, and a reciprocating pawl oper-. ating alternately on said sets of teeth, of a regularly-reciprocating boring bit carrying frame under said stile-carrier, a mortisingtool frame in which the bit-carrying frame reciprocates, the hollow mortising-tools through which said bits pass, a reciprocating bar for operating the mortising-tool frame, a device for connecting the said frame and bar, and a pawl or lever in the path of the said lugs to operate said connecting device and permit the mortising-tool frame to be reciprocated when the pawl is acting on said shorter teeth, substantially as described.

7. In a blind-stile boring and mortising machine, a stile-carrier having sets of teeth of varying lengths, in combination with a pawl adapted to engage the said sets of teeth to move the carrier forward, and a device, substantially as described, to cover part of the small teeth, so that the said pawl moves the said carrier the distance between two small teeth, substantially as shown and described.

8. In a blind-stile boring and mortisingmachine, a stile-carrier having sets of teeth of varying lengths on its upper side, a lug on said upper side in rear of each set of shorter of each of said sets of shorter teeth, the swinging frame over the stile in the path of the upper lugs and carrying a wedge, the pawl for engaging the stileteeth and engaged at intervals by said wedge for the purpose described, a pawl or lever below the stilecarrier in the path of the lower lugs, a vertical tool-carrying frame provided with a bolt operated by said pawl or lever, and an operating mechanism connected with the said frame when the bolt is operated by said pawl or lever, substantially as described.

9. In a blind-stile boring and mortising machine, the combination, with a stile-carrier provided in its under side with a lug, of a gravity-pawl adapted .to be actuated by the said lug, a spring-pressed bolt engaging the said gravity-pawl, a frame carrying the mortising-tools and in which the said bolt is fitted to slide, an arm having a reciprocating motion and adapted to be engaged by the said boltto reciprocate the said frame, and a block held adjustably on the said arm and adapted to engage the said bolt, substantially as shown and described. I

10. In a blind-stile boring and mortising machine, the combination, with astile-carrier provided in its under side with a lug, of a gravity-pawl adapted to be actuated by the said big, a spring-pressed bolt engaging the said gravity-pawl, a frame carrying the mortising-tools and in which the said bolt is fitted to slide, an arm having a reciprocating motion and adapted to be engaged by the said bolt to reciprocate the said frame, a regularlyreciprocating boring-bit frame within the mortising-tool frame, the bits thereof passing through the mortising-tools, and means, substantially as described, for moving the said stile-carrier when the said frames slide downward and the mortising and boring tools are disengaged from the stile, substantially as shown and described.

\VILLIAM C. AYOOCK.

. JOHN A. AYOOOK.

WVitnesses:

\VM. VARDER, J. P. NIoHoLs.

teeth, and a lug on its under side in advance 

